Comparison between venous-first vascular approach (IMV-first) and arterial-first vascular approach (IMA-first) in robotic left hemicolectomy and anterior resection for colorectal cancer

Comparison between venous-first vascular approach (IMV-first) and arterial-first vascular approach (IMA-first) in robotic left hemicolectomy and anterior resection for colorectal cancer - ROBO-VASC

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00039889

Enrollment

140

Registered

2026-04-14

Start date

2026-04-15

Completion date

Unknown

Last updated

2026-06-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Left-sided colorectal cancer

Interventions

Group 1: IMV-first group Patients undergoing robotic left hemicolectomy or anterior resection for colorectal cancer with initial vascular control starting from the inferior mesenteric vein (IMV-first

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Adult patients (=18 years) with left-sided colorectal cancer undergoing elective robotic left hemicolectomy or anterior resection with curative intent, who are considered suitable for robotic surgery and provide written informed consent.

Exclusion criteria

Exclusion criteria: Patients aged <18 years, emergency procedures, diagnoses other than left-sided colorectal cancer, ineligibility for robotic surgery, planned open or conventional laparoscopic surgery, unresectable disease or palliative intent, and inability to provide informed consent.

Design outcomes

Primary

Measure	Time frame
Primary outcome: Comparison of operative time between the IMV-first and IMA-first approaches in robotic left hemicolectomy and anterior resection for colorectal cancer. Operative time is defined as the time from skin incision to skin closure, measured in minutes.	—

Secondary

Measure	Time frame
Time to first vascular control, defined as the time from skin incision to the first ligation or clipping of the target vessel (IMV or IMA), measured in minutes. Estimated intraoperative blood loss, measured in milliliters. Intraoperative complications, including vascular injury, ureteral injury, or other procedure-related adverse events. Conversion to open surgery, recorded as yes/no. Conversion to multiport laparoscopy or need for unplanned additional trocars, if applicable. Number of harvested lymph nodes. Resection margin status (R0/R1). Length of postoperative hospital stay, measured in days. Postoperative complications within 30 days, classified according to the Clavien–Dindo classification. Anastomotic leak within 30 days, recorded as yes/no. Reoperation within 30 days, recorded as yes/no. Readmission within 30 days, recorded as yes/no.	—

Measure

Time frame

Time to first vascular control, defined as the time from skin incision to the first ligation or clipping of the target vessel (IMV or IMA), measured in minutes. Estimated intraoperative blood loss, measured in milliliters. Intraoperative complications, including vascular injury, ureteral injury, or other procedure-related adverse events. Conversion to open surgery, recorded as yes/no. Conversion to multiport laparoscopy or need for unplanned additional trocars, if applicable. Number of harvested lymph nodes. Resection margin status (R0/R1). Length of postoperative hospital stay, measured in days. Postoperative complications within 30 days, classified according to the Clavien–Dindo classification. Anastomotic leak within 30 days, recorded as yes/no. Reoperation within 30 days, recorded as yes/no. Readmission within 30 days, recorded as yes/no.

—

Countries

Italy

Contacts

Public ContactMario Annecchiarico

UOC Chirurgia Generale e Oncologica, AORN San Pio Benevento

mario.annecchiarico@aornsanpio.it+393281551968

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Jun 11, 2026